Definition
noun, plural: immunogens
Any substance that stimulates an immune response, such as production of specific antibody or cellular immunity.
Supplement
An immunogen is a kind of antigen that elicits an immune response. Unlike other types of antigens (such as hapten and tolerogen), immunogen can by itself stimulate an immune response and then serve as the target of such response.
Word origin: From immuno-, immune + –gen, from Gk –genĂ©s, born, produced.
Related forms: immunogenic (adjective).
Synonym: antigen.
Compare: tolerogen.
See also: immune response.
Dictionary > Immunogen
You will also like...
![Lotic community of algal species](https://www.biologyonline.com/wp-content/uploads/2020/02/Lotic-Communities-Algae-252x168.jpg)
Lotic Communities & Algae
Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..
![Pikas are an indicator species for climate change](https://www.biologyonline.com/wp-content/uploads/2020/02/Indicator-Species-and-Endangered-Species-252x168.jpg)
Indicator Species and Endangered Species
Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..
![Adaptation Tutorial](https://www.biologyonline.com/wp-content/uploads/2020/02/Adaptation-Tutorial-300x168.jpg)
Adaptation Tutorial
Adaptation, in biology and ecology, refers to the process or trait through which organisms or the populations in a habit..
![Population Growth and Survivorship](https://www.biologyonline.com/wp-content/uploads/2020/09/Population-Growth-and-Survivorship-300x168.jpg)
Population Growth and Survivorship
This lesson looks at population attributes, regulation, and growth. It also covers population genetics, particularly gen..
![genes controlling growth and development](https://www.biologyonline.com/wp-content/uploads/2020/02/Control-of-Growth-Development-300x168.jpg)
Control of Growth & Development
Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..
![Homeostatic Mechanisms and Cellular Communication](https://www.biologyonline.com/wp-content/uploads/2020/02/Homeostatic-Mechanisms-and-Cellular-Communication-259x168.jpg)
Homeostatic Mechanisms and Cellular Communication
Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory res..